Display substrate, display mother board and display apparatus including hollowed-out region

Abstract

Provided is a display substrate, which includes: a base substrate, a light-emitting unit provided on the base substrate, and an encapsulation layer provided on a side of the light-emitting unit away from the base substrate. The display substrate includes a display area and a non-display area at a periphery of the display area, a functional layer is arranged on a side of the encapsulation layer away from the base substrate, the functional layer includes a patterned region in the non-display area, a pattern of the patterned region includes a hollowed-out region and a filling region, and the hollowed-out region forms an air column.

What is claimed is: 
     
         1 . A display substrate, comprising: a base substrate, a light-emitting unit on the base substrate, and an encapsulation layer on a side of the light-emitting unit away from the base substrate,
 wherein the display substrate comprises a display area and a non-display area at a periphery of the display area, a functional layer is arranged on a side of the encapsulation layer away from the base substrate, the functional layer comprises a patterned region in the non-display area, a pattern of the patterned region comprises a hollowed-out region and a filling region, and the hollowed-out region forms an air column; and   wherein the functional layer consists of either a touch control film layer or a color film layer, wherein the touch control film layer comprises a first metal layer, an insulating layer, a second metal layer and a protective layer that are arranged in sequence along a direction away from the base substrate, and the pattern is formed on at least one film layer of: the first metal layer, the insulating layer, the second metal layer and the protective layer.   
     
     
         2 . The display substrate according to  claim 1 , wherein the non-display area comprises a barrier wall surrounding the periphery of the display area, the patterned region is located in a first region comprising the barrier wall, a first edge of the first region at a side of the barrier wall away from the display area is at a distance of 50 μm to 300 μm from the barrier wall, and a second edge of the first region at a side of the barrier wall close to the display area is at a distance of 50 μm to 150 μm from the barrier wall. 
     
     
         3 . The display substrate according to  claim 1 , wherein the pattern comprises a first sub-pattern at one side of the display area along a first direction, the first sub-pattern comprises a plurality of hollowed-out regions and a plurality of filling regions that are arranged alternately along the first direction, and each of the hollowed-out regions extend in a direction intersecting with the first direction. 
     
     
         4 . The display substrate according to  claim 3 , wherein the plurality of hollowed-out regions comprises a first hollowed-out sub-region at an edge of the display substrate and a second hollowed-out sub-region other than the first hollowed-out sub-region, and in the first direction, a width of the second hollowed-out sub-region decreases as a distance between the second hollowed-out sub-region and the first hollowed-out sub-region increases. 
     
     
         5 . The display substrate according to  claim 3 , wherein a width of each of the hollowed-out regions in the first direction is 3 μm to 50 μm. 
     
     
         6 . The display substrate according to  claim 1 , wherein the pattern comprises a second sub-pattern at one side of the display area along a first direction, the second sub-pattern comprises a hollowed-out region and a filling region arranged alternately, the filling region comprises a plurality of columns of filling sub-regions arranged at intervals along the first direction, each column of the filling sub-regions comprises a plurality of filling portions arranged at intervals along a direction perpendicular to the first direction, and the hollowed-out region comprises first hollowed-out sub-regions located between adjacent two columns of filling sub-regions, and second hollowed-out sub-regions located between adjacent two filling portions of the filling portions. 
     
     
         7 . The display substrate according to  claim 6 , wherein the plurality of first hollowed-out sub-regions comprises a first hollowed-out portion located at an edge of the display substrate and a second hollowed-out portion other than the first hollowed-out portion, and in the first direction, a width of the second hollowed-out portion decreases as the distance between the second hollowed-out portion and the first hollowed-out portion increases. 
     
     
         8 . The display substrate according to  claim 6 , wherein a width of adjacent two first hollowed-out sub-regions in the first direction is 3 μm to 50 μm, and a width of adjacent two second hollowed-out sub-regions in a second direction perpendicular to the first direction is 3 μm to 50 μm. 
     
     
         9 . The display substrate according to  claim 6 , wherein filling portions in adjacent two columns of filling sub-regions are arranged in a staggered manner. 
     
     
         10 . The display substrate according to  claim 6 , wherein each of the filling portions has a cross section of strip-shaped structure in a direction parallel to the base substrate, an extension direction of the strip-shaped structure has an included angle with the first direction, adjacent two filling portions in the same column of filling sub-regions are inclined in opposite directions, and adjacent two filling portions in adjacent two columns of filling sub-regions are inclined in a same direction. 
     
     
         11 . A display mother board, used to form the display substrate according to  claim 1  along a cut line, wherein an orthographic projection of the cut line onto the functional layer is located within the air column. 
     
     
         12 . A display apparatus, comprising the display substrate according to  claim 1 .